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1987 Chevy Truck runs an hour then dies

Tiny
MYRDDINMOON
  • MEMBER
  • 1987 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
I replaced the TBI (seized up) motor with a 1969 carbureted 350. This truck has dual tanks and fuel pumps inside the tanks. It starts, idles, and runs fine for about an hour, then starts losing power and dies. The charging system is good. Timing has been checked several times. Seems to be fuel related.
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Monday, September 1st, 2008 AT 9:37 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Is this a conventional ignition or electronic? Might want to check the fuel pressure and comeback with the readings this is where we start
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Monday, September 1st, 2008 AT 10:11 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

I would be checking the fuel pressure and flow rates, checked for a blocked filter and try and check the pickup in the tanks are not blocked.

Mark (mhpautos)
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Monday, September 1st, 2008 AT 10:15 PM

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